Improvement in the manufacture of horseshoes



c. H. PERKINS.

' MANUFACTURED}? HORSES ES.

No. 187,727. Pate Feb. 27,1877.

FIG-.2.

I NiPErzRs, Pridm-uniQGRAFI-IER. wasumgrou. 01c.

INVENTOR.

UETTEE STATES PATENT QEEIOE.

CHARLES H. PERKINS, OF PROVIDENOE, RHODE ISLAND.

IMPROVEMENT IN THE MANUFACTURE OF HORSES HOES.

Specification forming part of Letters Patent No. 187,727, dated February707, 1877 application filed November t3, 1876.

To all whom it may concern Be it known that I, CHARLES H. PERKINS, ofProvidence, in the State of Rhode Island, have made certain new anduseful Improvements in the Manufacture of Horseshoes; and I do herebydeclare that the following specification, taken in connection with thedrawing making a part of the same, is a full, clear, and exactdescription thereof.

Figure 1 is a view'of the die. Fig. 2 is a section of same. Fig. 3 isaview of the shoe before being acted upon by the die. Fig. "4 is asection of same. Fig. 5 is a view of the shoe after being acted upon bythe die. Fig. 6 is a section of same. 7

The object of my invention is to increase the rapidity with whichhorseshoes can be manufactured, and at the same time reduce the cost ofproduction; and consists in rolling the shoe with grooves and calkscomplete, and subsequently shaping the sidesin a die, as hereinafterdescribed.

It will be seen, by reference to Letters Patent of the United States forhorseshoeblanks, granted to me on the 21st day of March, A. D. 1876, andnumbered 174,924, that double blanks for horseshoes have heretofore beenrolled and subsequently divided and bent into shape.

In my invention I roll the blank with calks, grooves, and nail holes,and subsequently divide and bend, as heretofore, then finish in a die,as hereinafter set forth, thus producing a complete shoe without theintervention of hand-labor.

The nail-holes, however, are not carried entirely through by the rollingprocess, but require the subsequent action of any suitable mechanism tofinish them.

The degree of sharpness of the calks may be easily varied to suit thecondition of the surface over which the horse is to travel.

In order to enable the blank to undergo the bending necessary to bringit into the required shape, I roll it with the inner edge lower betweenthe calks than the outer edge, the obvious effect of which is to reducethe strain upon the latter at the points where the greatest strain issustained during the bending process by the sudden depression of theinner edge, and the gradual depression of the outer edge. upon eitherside of the toe-calk toward the heel.

The cutting-edges which make the grooves, if made sufficiently large towithstand the strain, spread apart the outer and inner edges to anextent which renders a subsequent partial closing or forcing togethernecessary. In order to accomplish this I make use of a die, as shown inFig. 1,,into which I place and force the shoe while hot, which gives tothe outer edge an inward curve, and brings the two edges nearertogether.

What I claim as my invention, and desire to secure by Letters Patent, is

1. As an improvement in the art of finishing borseshoes made of ironcreased and punched by rolling, and of the form substantially incross-section as described in my Patent No. 174,924, the swaging of saidshoe in a die for the purpose of partially closing the distended creasesand nail-holes, and otherwise imparting-a finished form to the shoe, asherein set forth.

2. The die constructed as herein described, for curving and shaping thesides ofthe shoe, and partially closing the grooves, as specified.

O. H. PERKINS.

Witnesses: WALTER B. VINcEN HENRY G. KNIGHT.

